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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
COSTCO WHOLESALE CORP NEW: COST
Price: 10/31/25 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$911.45 $1,078.23 $871.71 $403,936 443 2,328 0.6% 1.6% 72.20% 0.16%
Exch Sector Industry Sub-Industry
NasdaqGS Retail Trade General Merchandise Stores Retail- Variety Stores
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#
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
BARBRE TIFFANY MARIE
AO
S
$1,158,353
1,239
---
10/24/25
---
$934.62
5,155
-19.4
D
R
10/24/25 - 7:50:45 pm
2
    
 
ADAMO CLAUDINE
VP
JS
$3,191,995
3,405
10/22/25
10/24/25
---
$935.68
6,851
-33.2
D
R
10/24/25 - 7:12:12 pm
3
    
 
BARBRE TIFFANY MARIE
AO
JS
$512,319
542
---
10/22/25
---
$944.68
6,395
-7.8
D
R
10/24/25 - 7:50:45 pm
4
    
 
BARBRE TIFFANY MARIE
AO
JB
---
2,118
---
10/22/25
---
---
6,937
43.9
D
R
10/24/25 - 7:50:45 pm
5
    
 
VACHRIS ROLAND MICHAEL
PR,CEO,DIR
JS
$2,506,047
2,653
---
10/22/25
---
$944.68
52,258
-4.8
D
R
10/24/25 - 7:32:57 pm
6
    
 
VACHRIS ROLAND MICHAEL
PR,CEO,DIR
JB
---
13,834
---
10/22/25
---
---
54,911
33.7
D
R
10/24/25 - 7:32:57 pm
7
    
 
SULLIVAN JOHN CHRISTOPHER
VP
JS
$2,374,491
2,514
---
10/22/25
---
$944.68
47,671
-5.0
D
R
10/24/25 - 7:30:50 pm
8
    
 
SULLIVAN JOHN CHRISTOPHER
VP
JB
---
4,654
---
10/22/25
---
---
50,185
10.2
D
R
10/24/25 - 7:30:50 pm
9
    
 
POLIT JAVIER
VP
JS
$1,103,651
1,168
---
10/22/25
---
$944.68
12,797
-8.4
D
R
10/24/25 - 7:27:54 pm
10
    
 
POLIT JAVIER
VP
JB
---
4,219
---
10/22/25
---
---
13,965
43.3
D
R
10/24/25 - 7:27:54 pm
11
    
 
MILLERCHIP GARY
VP
JS
$768,374
813
---
10/22/25
---
$944.68
16,619
-4.7
D
R
10/24/25 - 7:23:44 pm
12
    
 
MILLERCHIP GARY
VP
JB
---
6,268
---
10/22/25
---
---
17,433
56.1
D
R
10/24/25 - 7:23:44 pm
13
    
 
KLAUER JAMES C
VP
JS
$866,602
917
---
10/22/25
---
$944.68
46,337
-1.9
D
R
10/24/25 - 7:20:07 pm
14
    
 
FRATES CATON
VP
JS
$2,615,526
2,769
---
10/22/25
---
$944.68
6,515
-29.8
D
R
10/24/25 - 7:17:55 pm
15
    
 
CALLANS PATRICK J
VP
JS
$866,224
917
---
10/22/25
---
$944.68
60,895
-1.5
D
R
10/24/25 - 7:14:20 pm
16
    
 
STANTON JOHN W
DIR
JB
---
286
---
10/22/25
---
---
24,090
1.2
D
R
10/24/25 - 6:32:32 pm
17
    
 
WILDEROTTER MARY AGNES
DIR
JB
---
286
---
10/22/25
---
---
3,205
9.8
D
R
10/24/25 - 6:24:20 pm
18
    
 
RAIKES JEFFREY S
DIR
JB
---
286
---
10/22/25
---
---
20,528
1.4
D
R
10/24/25 - 6:21:56 pm
19
    
 
JEWELL SARAH MR SALLY
DIR
JB
---
286
---
10/22/25
---
---
3,613
8.6
D
R
10/24/25 - 6:17:47 pm
20
    
 
JAMES HAMILTON E
DIR
JB
---
286
---
10/22/25
---
---
55,538
0.5
D
R
10/24/25 - 6:16:06 pm
21
    
 
FOULKES HELENA
DIR
JB
---
286
---
10/22/25
---
---
1,087
35.7
D
R
10/24/25 - 6:14:12 pm
22
    
 
DENMAN KENNETH D
DIR
JB
---
286
---
10/22/25
---
---
5,989
5.0
D
R
10/24/25 - 6:09:53 pm
23
    
 
DECKER SUSAN L
DIR
JB
---
286
---
10/22/25
---
---
11,817
2.5
D
R
10/24/25 - 6:02:45 pm
24
    
 
WILCOX WILLIAM RICHARD
VP
3
---
---
---
10/6/25
---
---
4,401
---
I
---
10/9/25 - 5:55:53 pm
25
1y
8
0%
34%
1
MILLER RUSSELL D
VP
S
$3,093,615
3,381
---
9/29/25
---
$915.00
9,740
-25.8
I
---
10/1/25 - 5:00:25 pm
26
    
 
FRATES CATON
VP
S
$1,401,431
1,540
---
9/29/25
---
$910.02
9,284
-14.2
D
---
9/30/25 - 4:54:13 pm
27
    
 
MILLER RUSSELL D
VP
JS
---
2,918
---
9/23/25
---
---
2
-99.9
D
---
9/24/25 - 4:17:02 pm
28
    
 
MILLER RUSSELL D
VP
JB
---
2,918
---
9/23/25
---
---
13,120
28.6
I
---
9/24/25 - 4:17:02 pm
29
    
 
RUBANENKO YORAM
VP
JS
$1,669,599
1,746
---
9/10/25
---
$956.29
8,247
-17.5
D
R
9/12/25 - 5:56:14 pm
30
    
 
RUBANENKO YORAM
VP
JB
---
4,219
---
9/10/25
---
---
9,993
73.1
D
R
9/12/25 - 5:56:14 pm
31
    
 
RIEL PIERRE
VP
JS
$1,538,060
1,608
---
9/10/25
---
$956.29
11,256
-12.5
D
R
9/12/25 - 5:53:49 pm
32
    
 
RIEL PIERRE
VP
JB
---
4,654
---
9/10/25
---
---
12,864
56.7
D
R
9/12/25 - 5:53:49 pm
33
    
 
MILLER RUSSELL D
VP
JS
$1,659,244
1,735
---
9/10/25
---
$956.29
2,920
-37.3
D
R
9/12/25 - 5:51:16 pm
34
    
 
MILLER RUSSELL D
VP
JB
---
4,654
---
9/10/25
---
---
4,655
460,792.1
D
R
9/12/25 - 5:51:16 pm
35
    
 
KLAUER JAMES C
VP
JS
$916,400
958
---
9/10/25
---
$956.29
47,254
-2.0
D
R
9/12/25 - 5:45:57 pm
36
    
 
KLAUER JAMES C
VP
JB
---
4,219
---
9/10/25
---
---
48,213
9.6
D
R
9/12/25 - 5:45:57 pm
37
    
 
JONES TERESA A
VP
JS
$1,437,611
1,503
---
9/10/25
---
$956.29
5,078
-22.8
D
R
9/12/25 - 5:43:19 pm
38
    
 
JONES TERESA A
VP
JB
---
4,219
---
9/10/25
---
---
6,581
178.6
D
R
9/12/25 - 5:43:19 pm
39
    
 
FRATES CATON
VP
JS
$1,215,519
1,271
---
9/10/25
---
$956.29
10,824
-10.5
D
R
9/12/25 - 5:40:31 pm
40
    
 
FRATES CATON
VP
JB
---
4,219
---
9/10/25
---
---
12,095
53.6
D
R
9/12/25 - 5:40:31 pm
41
    
 
CALLANS PATRICK J
VP
JS
$908,156
950
---
9/10/25
---
$956.29
61,812
-1.5
D
R
9/12/25 - 5:36:45 pm
42
    
 
CALLANS PATRICK J
VP
JB
---
4,219
---
9/10/25
---
---
62,761
7.2
D
R
9/12/25 - 5:36:45 pm
43
    
 
ADAMO CLAUDINE
VP
JS
$908,156
950
---
9/10/25
---
$956.29
10,256
-8.5
D
R
9/12/25 - 5:33:41 pm
44
    
 
ADAMO CLAUDINE
VP
JB
---
4,219
---
9/10/25
---
---
11,206
60.4
D
R
9/12/25 - 5:33:41 pm
45
    
 
JONES TERESA A
VP
S
$595,230
600
---
8/20/25
---
$992.05
2,362
-20.3
D
---
8/22/25 - 5:26:08 pm
46
    
 
RAIKES JEFFREY S
DIR
JS
---
6,573
---
7/14/25
---
---
20,242
-24.5
D
---
7/15/25 - 4:13:44 pm
47
    
 
RUBANENKO YORAM
VP
S
$3,899,852
4,000
---
7/14/25
---
$974.96
5,774
-40.9
D
---
7/15/25 - 4:10:22 pm
48
    
 
BARBRE TIFFANY MARIE
AO
3
---
---
---
7/1/25
---
---
4,819
---
D
R
7/10/25 - 4:27:05 pm
49
1y
27
0%
32%
2
DECKER SUSAN L
DIR
S
$536,058
547
---
6/18/25
---
$978.39
11,531
-4.5
D
---
6/20/25 - 4:40:26 pm
50
    
 
CALLANS PATRICK J
VP
S
$3,008,298
3,000
---
6/9/25
---
$1,002.77
58,543
-4.9
D
---
6/10/25 - 4:52:18 pm
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